The national, professional association representing optometry.
The national, professional association representing optometry.
Decreased vision in one or both eyes without detectable anatomic damage in the eye or visual pathways. Usually uncorrectable by eyeglasses or contact lenses.
An acquired retinal disorder characterized by degeneration in the central (macular) area of the retina. This is the leading cause of blindness in persons over age 65.
Dioptric power added to a distance prescription to accommodate some finite distance such as for reading. The dioptric power of a bifocal segment.